Finding the Fourth Proportional to 106,441.36, 159,615.68 and 30,523.13
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Solution
The fourth proportional to 106,441.36, 159,615.68 and 30,523.13 is: 45,771.39
Step by Step Solution
- Step 1: Write the proportion equation
106,441.36 : 159,615.68 = 30,523.13 : x - Step 2: Convert to fraction form
106,441.36/159,615.68 = 30,523.13/x - Step 3: Cross multiply
106,441.36x = 159,615.68 × 30,523.13 - Step 4: Simplify right side
106,441.36x = 4,871,969,352.60 - Step 5: Solve for x
x = 4,871,969,352.60/106,441.36 - Step 6: Final answer
x = 45,771.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.